The wrongly spelled word is "Avertion." The correct spelling is "Aversion." Aversion refers to a strong dislike or feeling of repugnance towards something or someone.

Explanation of the other options:

☀ Aviation: This word is spelled correctly. It refers to the operation and use of aircraft or flying.

☀ Omission: This word is spelled correctly. It refers to the act of leaving out or excluding something.

☀ Evasion: This word is spelled correctly. It refers to the act of avoiding or escaping something, typically by deceit or cleverness.